package com.atguigu.gulimall.product.exception;

import com.atguigu.gulimall.common.exception.BizCodeEnum;
import com.atguigu.gulimall.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 处理统一异常信息
 */
@Slf4j
//@ControllerAdvice
//@ResponseBody
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = Exception.class)
    public R handleExceptionAdvice(MethodArgumentNotValidException e){
      log.error("数据校验出现问题{}，异常类型：{}",e.getMessage(),e.getClass());
        BindingResult bindingResult = e.getBindingResult();
        List<FieldError> fieldErrors = bindingResult.getFieldErrors();
        Map<String,String> map = new HashMap<>();
        fieldErrors.forEach((item) -> {
            map.put(item.getField(),item.getDefaultMessage());
        });

        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(),BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data",map);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleGlobalException(Throwable throwable){

        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(),BizCodeEnum.UNKNOWN_EXCEPTION.getMsg());

    }
}
